Can't debug AutoCAD testing plugin

[GoogleCodeExporter]

What steps will reproduce the problem?
1.  Try to debug a unit test using Icarus:

What is the expected output? What do you see instead?  I expected to be able to 
debug.  I got this error:

A fatal exception occurred while running tests.  Possible causes include 
invalid test runner parameters and stack overflows.
Gallio.Model.ModelException: An exception occurred while invoking a test 
driver. ---> System.ArgumentNullException: Value cannot be null.
Parameter name: process
ParamName: process
HResult: -2147467261
   at Gallio.Common.Concurrency.ProcessWrapper..ctor(Process process) in c:\Server\Projects\MbUnit v3\Work\src\Gallio\Gallio\Common\Concurrency\ProcessWrapper.cs:line 36
   at Gallio.AutoCAD.ProcessManagement.CreatedAcadProcess.StartProcess(DebuggerSetup debuggerSetup)
   at Gallio.AutoCAD.ProcessManagement.AcadProcessBase.Start(String ipcPortName, Guid linkId, DebuggerSetup debuggerSetup)
   at Gallio.AutoCAD.Isolation.AcadTestIsolationContext.Batch.GetTestIsolationServer(DebuggerSetup debuggerSetup)
   at Gallio.AutoCAD.Isolation.AcadTestIsolationContext.RunIsolatedTaskImpl[TIsolatedTask](HostSetup hostSetup, StatusReporter statusReporter, Object[] args)
   at Gallio.Model.DotNetTestDriver.ExploreOrRunAssembly(ITestIsolationContext testIsolationContext, TestPackage testPackage, TestExplorationOptions testExplorationOptions, TestExecutionOptions 

What version of the product are you using? On what operating system?
Gallio 3.4 on Windows 7 64-bit

Please provide any additional information below.

Original issue reported on code.google.com by dave.wo...@outlook.com on 13 Sep 2012 at 4:10

[GoogleCodeExporter]

Seems like another example of this issue: 
https://groups.google.com/forum/?fromgroups=#!searchin/gallio-dev/corflags/galli
o-dev/FhbhZnAVNBY/JfhQDkfShQgJ

Original comment by dave.wo...@outlook.com on 28 Sep 2012 at 2:21